Photos: Thousands of pot enthusiasts throw one smokin’ party in Vancouver

VANCOUVER, BC.: APRIL 20, 2012-Vancouver's annual "4/20" marijuana freedom rally at the art gallery in downtown Vancouver, B.C., on April 20, 2012. At 4:20 pm there was a pale of smoke above the crowd. Traffic was tied up as the crowd spilled out on Georgia Street. And there were some cool hairdos.

VANCOUVER, BC.: APRIL 20, 2012-Vancouver's annual "4/20" marijuana freedom rally at the art gallery in downtown Vancouver, B.C., on April 20, 2012. At 4:20 pm there was a pale of smoke above the crowd. Traffic was tied up as the crowd spilled out on Georgia Street.

VANCOUVER, BC.: APRIL 20, 2012-Vancouver's annual "4/20" marijuana freedom rally at the art gallery in downtown Vancouver, B.C., on April 20, 2012. At 4:20 pm there was a pale of smoke above the crowd. Traffic was tied up as the crowd spilled out on Georgia Street. And there were some cool hairdos.